| 05/1959 | Takenaka Electronic Industrial Co., Ltd. established by Mr Shinsaku Takenaka in Kyoto, Japan. Developed the first transistor optical sensor and photoelectric counter. |
| 02/1964 | Head office and factory completed facing Kyoto Higashi Interchange, Meishin Expressway. |
| 08/1965 | The first book about photoelectric sensor technology in Japan, "Photoelectric Control and its Application" by Mr Shinsaku Takenaka, published. |
| 10/1971 | Received Invention Incentive Prize from Invention Association Inc. |
| 01/1972 | Takenaka Opesate System initiated. Established Takenaka Group Center Co., Ltd. Established Takenaka Optonic Co., Ltd. Established Takenaka Engineering Co., Ltd. |
| 03/1972 | TAKEX Higashi-Inter Building completed. |
| 06/1973 | Takenaka Electronic Industrial Co., Ltd. recognized as an excellent tax reporting enterprise by the Higashiyama Taxation Office, Kyoto. |
| 09/1973 | Takenaka Engineering Co., Ltd. received first investment from Venture Capital Fund KED. |
| 01/1975 | Established Takenaka System Co., Ltd. |
| 12/1981 | Takenaka Engineering Co., Ltd. received "The Special Incentive Prize" from the Small and Medium Enterprise Research Center. |
| 01/1982 | Proclaimed Management Policy of Takenaka, declaring this year "The year for deciding and announcing the company's future course" in celebration of the tenth Anniversary of Takenaka Opesate System initiation. |
| 07/1982 | Established TAKEX America Inc. (in California, U.S.A.) |
| 01/1984 | Established Security House Center Co., Ltd. |
| 11/1984 | TAKEX Kitakazan Building completed |
| 04/1987 | Received Commendation by the minister of state for Science and Technology. |
| 11/1989 | Takenaka Management Policy "My Venture Words" published. |
| 03/1990 | Established TAKEX Europe Ltd. (in U.K.) |
| 04/1990 | Mr Shinsaku Takenaka received a National Medal of Honor with Yellow Ribbon for his achievement of R & D of Sensor Technology. |
| 11/1999 | TAKEX Higashino main Building completed Takenaka Engineering Co., Ltd. recognized as an excellent tax reporting enterprise by the Higashiyama Taxation office, Kyoto. |
| 10/2000 | TAKEX Higashino North Building completed Awarded the Engineering Prize of the Industrial Technology Promotion Foundation. |
| 11/2000 | TAKEX Nishino Building completed. |
| 02/2002 | Awarded the Invention Prize of the Japan Society for the Advancement of Inventions. |
| 11/2002 | Takenaka Group Center Co., Ltd. recognized as an excellent tax reporting enterprise by the Higashiyama Taxation office, Kyoto. |
| 11/2004 | Received Invention Incentive Prize from Invention Association Inc. |
| 03/2005 | Established TAKEX Laboratories Co., Ltd. |
| 04/2007 | Received Kyoto Invention Service Prize from Kyoto Prefecture. |
| 11/2007 | TAKEX Ohtsuka Building completed. |
| 11/2009 | Takenaka Sensor Group 50th Anniversary. |
| 09/2011 | Published the "Takenaka Sensor Group 50-years history". |
| 11/2011 | Received the "Small and Medium Enterprise Agency Director Encouragement Award" from the Institute of Invention and Innovation. |
| 01/2017 | Completed the TAKEX Dai-ni Higashino Building. |
| 11/2017 | Received the "Small and Medium Enterprise Agency Director Award" from the Institute of Invention and Innovation. |